The diagram shows a filamentary loop with radius a, steady current I , and mass per unit length . The loop is levitated against its

The diagram shows a filamentary loop with radius a, steady current I , and mass per unit length ρ. The loop is levitated against its weight at a height h above the north pole of a very long cylindrical bar magnet with radius r. Find the magnetization of the permanent magnet. Assume that r

1,p Z h a N |2r|- y